CSS3 equivalent to jQuery slideUp and slideDown?

Question

My application is performing poorly with jQuery\'s slideDown and slideUp. I\'m looking to use a CSS3 equivalent in browsers which support it.

Is it possible, using C

Answer 1

    try this for slide up slide down with animation 
give your **height

        @keyframes slide_up{
            from{
                min-height: 0;
                height: 0px;
                opacity: 0;
            }
            to{
                height: 560px;
                opacity: 1;
            }
        }

        @keyframes slide_down{
            from{
                height: 560px;
                opacity: 1;
            }
            to{
                min-height: 0;
                height: 0px;
                opacity: 0;
            } 
        }

Answer 2

You could do something like this:

#youritem .fade.in {
    animation-name: fadeIn;
}

#youritem .fade.out {
    animation-name: fadeOut;
}

@keyframes fadeIn {
    0% {
        opacity: 0;
        transform: translateY(startYposition);
    } 
    100% {
        opacity: 1;
        transform: translateY(endYposition);
    }
}

@keyframes fadeOut {
    0% {
        opacity: 1;
        transform: translateY(startYposition);
    } 
    100% {
        opacity: 0;
        transform: translateY(endYposition);
    }
}

Example - Slide and Fade:

This slides and animates the opacity - not based on height of the container, but on the top/coordinate. View example

Example - Auto-height/No Javascript: Here is a live sample, not needing height - dealing with automatic height and no javascript.
View example

Answer 3

I changed your solution, so that it works in all modern browsers:

css snippet:

-webkit-transition: height 1s ease-in-out;
-moz-transition: height 1s ease-in-out;
-ms-transition: height 1s ease-in-out;
-o-transition: height 1s ease-in-out;
transition: height 1s ease-in-out;

js snippet:

    var clone = $('#this').clone()
                .css({'position':'absolute','visibility':'hidden','height':'auto'})
                .addClass('slideClone')
                .appendTo('body');

    var newHeight = $(".slideClone").height();
    $(".slideClone").remove();
    $('#this').css('height',newHeight + 'px');

here's the full example http://jsfiddle.net/RHPQd/

Answer 4

why not to take advantage of modern browsers css transition and make things simpler and fast using more css and less jquery

Here is the code for sliding up and down

Here is the code for sliding left to right

Similarly we can change the sliding from top to bottom or right to left by changing transform-origin and transform: scaleX(0) or transform: scaleY(0) appropriately.